450 LXIX. RUBIACE. [Oldenlandia 
after cultivation, between Ambriz and Mubango, near the river Loge, 
rather scarce ; fl. and fr. July 1854. Also in plantations of Manihot 
utilissima in LoaNDA, Nov. 1859. No. 3079. 
Punco AnponGco.—A decumbent, apparently annual herb, rooting 
at the nodes, with a Violaceous habit, and whitish flowers. By springs 
in Funda Quilombo, within the presidium; fl. and fr. Jan. 1857. 
No. 3078. : 
28. 0. macrophylla DC. Prodr. iv. p.427 (1830); Hiern,/.c.,p. 63. 
Ampriz.—At a rivulet near the town, close to the springs, rare ; fl. 
Nov. 1854. No. 3069. 
BarRA DO DanpE.—An annual prostrate herb, with pale-blue 
flowers. In damp places at the banks of the river Dande near its 
mouth, here and there ; fl. and fr. Sept. 1858. No. 3070. 
Barra DO Benco.—In moist places at the river Bengo near 
Quifandango, sporadic ; fr. and few fl. Dec, 1853. In damp places at 
the river Bengo, rather rare ; fl. and fr. Jan. 1854. No. 3072. 
Gotunao Atto.—A glaucescent, prostrate-ascending, annual herb, 
with milk-white flowers. At the grassy banks of the river Casabala in 
Sobato de Bumba, not very abundant ; fl. and fr. Dec. 1855. No. 3068. 
Ampaca.—An annual marsh herb, with milk-white somewhat 
bluish flowers. Inswamps at the banks of the river Lucala ; fl. middle 
of Oct. 1856. No. 3071. 
The following No. should be compared with this species :— 
Huiita.—In herbaceous places at the borders of the forest near 
Catumba. A young plant without either fl. or fr. Jan. 1860. No. 5345. 
29. 0. ramosissima Hohen. ex Walp. Rep. ii. p. 502 (1848). 
O. hedyotoides Boiss. F). Orient. iii. p. 11 (1875) ; Hiern, J.c., p. 64. 
Ligonco.—An annual, rather rigid, divaricately branched, litile 
herb, with a Lythraceous habit; stem and branches angular ; leaves 
opposite, linear-lanceolate, spreading, bright-green: stipules shortly 
sheathing, 2- or 3-toothed; calyx-segments 10;-erect-spreading or 
patent ; corolla whitish (only one seen) ; ovary campanulate, 2-celled ; 
cells many-ovuled ; seeds numerous, angular, very small. In exposed 
situations on a black sandy soil at the banks of the river Lifune near 
Banza de Libongo ; fr. end of Sept. 1858. No. 3062. 
The following No., with solitary flowers in the axils, is perhaps 
a variety of this species :— 
MossamMEepes.—A rather small, prostrate, annual herb; branches 
several ; stems purplish, ascending; leaves linear; flowers rather 
small, white. In damp sandy places at the banks of the river Bero 
and about its mouth; fl. and fr. end of July and in August 1859. 
No. 3048. 
30. O. nervosa Hiern, sp. n. 
An annual, ascending or erect, glabrous, glaucescent herb, 23 
to 4 ft. high ; stem acutely quadrangular, the angles membranous- 
winged ; leaves ovate or lanceolate, acuminate, acute at the apex, 
more or less wedge-shaped at the base, membranous, flaccid, bright- 
green above, paler beneath, with several very prominent veins, 
1 to 34 in. long by } to 14 in. broad; petioles ranging up to ? in. 
long, slender, usually spreading ; stipules truncate, multi-setose ; 
flowers about j4, in. long, tetramerous, terminal and in the 
upper axils, arranged in compound loosely-branched cymes of 4 to 
